Apparatus for analysis of gases.



H. J. WESTOVBR. ABPARATUS FOR ANALYSIS 0P GASES.

AFPLIOATION FILED APR. 4. 1906.

PATENTED OCT. 16, 1906.

5 SEEMS-SHEET 2.

ATTORNEY Q Nol 833,274. PATENTED OCT. 16, 1906, H. J. WBSTOVER.

APPARATUS FOR ANALYSIS OF GASES.

APP LI OATION FILED APB. 4 1-906.

5 SHEETS-SHEET 3.

ATTORNEY No'r833 ,2 74. V PATENTED OCT. 16. 1906. v

. V H. J. WESTOVBR. V

APPARATUS FOR ANALYSIS OF GASES.

APPLIUATION FILED APBA, 1906.

' 5 SHEETSSEEET 4.

WITNESSES: W IIVVEATOI? ATTORNEY V BATENTED OQT. 16, 1906.

. H. J. WESTO-VBR. APPARATUS FOR ANALYSIS OF GASES.

ATPLIOATION FILED APB-4. 1906.

6 SHEETS-SHEET 6 IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII! p a V o A 1 n U H U H fl v H H N l H u It/i? WITNESSES:

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Specification of Letters Patent.

I Patented Oct. 16, 1906.

Application filed llpl'il l, 1906- SP-Tiill him-309,948.

To (ti/ 107mm If 777M711] concern:

Be it known that i, Unsnv J. ii 'rzsrovnn, a citizen oi the United States, residing in Mount Vernon, county of llestchcsfcr, State of New York, have invented a certain new and useful improvement in Machines .i'or Analysis of Gases, of which the following is a specification.

This invention has rel aticn to a mechanical means whereby a pract .aly continuous rec ord automatically produced. showing the percentage of carbonic acid present in fur- 11ac-e-gases, so as to i'irovide a pernianent and I(liitl)l0 indication of the conditions of combustion for the guidance of engineers.

The invention is shown in a preferred embodiment in the accompanying drawings, wl'ierein v Figure 1 is a plan view with the top of the casing IOlllOVOti. Fig. a side view. 3 is a horizontal section on the plane .r at in Fig. 5. Fig. 4 shows a portion of the record made on the paper tape. Fig. 5 is a ver tical section of the meesuring-chamber, showing certaiuother parts in diagram. 'Fig. 6 is a diagrammatic elevation showing the movable reservoirs and associatedparts, and 7 is a diagrammatic elevation showing the relation of the recording device to the revolving drum. 4

The various parts are operated in the proper order primarily by a main drum,

(shown at i) which may be driven by means of the sprockehwheel'2 01 otherwise, as desired. The furnace-gases to be analyzed are supplied in any desired manner to the reservoir coming in by thev )ipe 4, and are trans mitted from the reservoir to the measuring.- chamber througlii. the pipe The apparatus used for direct action upon the gases is best shown in Figs. 3, 5, end 6. Qhis comprises one or more movahle reservoirs 6, open to the atmosphere at the top end connected'by flexible tubes? to the bottom of the measuring-chamber 8. The reservoirs 6, tubes 7, and chamber 8 are provided with a body of a suitable insulating liquid, such as oil or glycerin, which does not al'isorb carbonic acid or other ingredients of the gases to be analyzed and. does not act an. elec l' ll conductor. The upper end of the m .asuring-chamhcr 8 is connected to the cti'uosphere y the tuhe Sior otherwise and is suri'nounted by a supplementary chamber 10, the top of which-is connected by a tube of small caliber 11, the other end of which the reservoir 6.

in Figs. 1 and .2.

connects with the top of the absorptionchamber 12. This last-named'chamber is in permanent connection with a displacementchamber 13 and is further provided with rods 14 or other means for increasing the area of wet surface. The chambers 12 and 33 contain a body of liquid capable of absorbing carlmnic acidas, for instance, a

solution of caustic potash. A three Way valve 15 serves to connect the top of the chamber 1.1) with the atmosphere at 16 or with the inle L-pipc 5, according to the position of the valve. v (See Fig. 1..) The valve 15 operated by rod 1.7, one end of whichis pivoted to the operating-lever 18, which lever has its fulcrum at 1.9 and carries on its op posite end a roller'20, located in the approprictely-shaped groove 21' on the surface of the main drum 1. As the drum revolves the inclined sides of the groove 21 cause backand-forth movement of the roller 20, where by the valve 15 is operated at the proper time with respect to the movement of the other parts of the apparatus- The reservoir or reservoirs are, raised or lowered at proper intervals by means of a toothed section 22,

pivoted at 23 and rigidly connected to an arm 1-, at the end of which is carried a rollerv 25,'wh1oh works within theeanngroove 26 on the surface of the main drum. As the drum revolves in the direction of the arrow in Fig. 2

the inclined sides of the groove 26 cause a reciprocating movement ofthe sector 22,-wh1ch is transmitted through the toothed Wheels 27 end to the'racl 29 so that this raclr=is caused to move up and down, carrying with it The rack and reservoir are count -rbalanced bythe Weight 30,-conneoted thereto by a rope 31. There is mounted on the main shaft with the main drum 1 a. recording-drum 32; which bears on its face a raised mcrking-surface 33, which is quite narrow" at one end and grows gradually broader toward the opposite end, asshown At the opposlte ends of the druni there are provided resetting-flanges 34, wliicl'i stand higher than the markingsurfaoe 33, as shown'i'n Fig. 5. The flanges extend around the drum 32, but are eut away, as slutnvn in Fig. 5, opposite the marking surfaoe 33:3 for purposes hereinafter explained. The .rc'eordribhon is Wound on K e roll at the bottom of the apparatus and 15 carried up opposite the periphery of the recordingdruin 32, as shown on Figs. 2, 5, and Y The progressive movement oi the ribbon 55 is accomplished by any desired niechanism,

which 18 indicated by the wheels 37 in Fig. 7:; Mechanism oi-this kind is well known in various srts and needs no further description here.

drum on one side and a bent marking-finger The niarlnng-finger 40 40 on the other side. is fixed on the end of a sleeve 41, carried on a spindle 42, end on the opposite end of sold sleeveis placed aweighted arm 48, the tendency of which is to press the tip of the finger 40 against the heck of the i'ibbon35, so. as to ress saidribbon against the marking-surface 33. An armature 44 is carried on. arm 43, and when this sun is raised. the urineture will hold it up as lon i the-magnet is energized, esshown in rigs. 1 and 2. The edge of the finger 40 is long enough to overlep the sides of the ribbon and. to be pushed outward by the flange 4 when. these revolve into a position oppo c said finger.

- Viithin the meesuring-ehztniher 8 there plsced. en ennular metallic flout 46, which slides vertically between inetellicguides 47,

.movement of the float 52.

said guides being supported by insulation 48, as shown in Fi s. 3 end 5, and being connected electrically by the wire 49 or otherwise. The guides 47 are electrically connected with the insulated binding-post 50. The insuleting-cylinder 51 depends from the top of the chamber 8,, being surrounded by the ilost 46 and surrounding in turn e second n1etalhc llost 52, preferably cylindrical in form, as shown. The bottom edge or the cylinder 52 normally rests upon a portion of the float 46,

and there is a guiding-rod 53 passing through insulating-guides 54 and 55 in the lower part of the chamber 8, which insures vex-tics]. A pivoted bub ancingdever 54 is providedwith en adjustable weight 55, preferably turning on a threaded stem 56, whereby the position of the apparatus with reg-an to the time of separation of the hosts 46 and 52, as herein described, is determined. The end pivot of the lever 54* is insulated, shown at 57 in Fig. 5, and the coils of the magnet 45 are con-- nected on one side through the battery 53 to the bindingnost 50 and on the other side to the insulstedpivot57, all as shown in Fig.

The operation of the device is as follows: Supposing at record to ha e been made and the measuring-chamber to be partly filled. with the gas, which has just been analyzed, the reservoirs 6, which are in their lowest osition, are moved upwer' by the mechanism above described. At the same time the valve 15 shuts oil access to the pipe 5 and opens the way to the atmosphere through 16. The insulating liquid in the measuring-chamber rises, driving theold' gas out to the atmosphere through 9 and 16 and this continues until the liquid reaches the top of the chamber 10. As the chamber 12 is full during this operation the old gas is entirely driven out exce t for whetds contained in the very small t'uii Further rotation or the drum 1 connects the tube 11 with the gss-inlet tube 5, and as soon as this is accomplished the reservoirs 6 descend and the level of the liquid falls into the measuring-chsmber, so thet the gases to be analyzed fill the empty. space left in the measuringchamber 8 and the en pleme'ntary chamber 10. In this position 'urther rotation of the drum 1 closes the valve 15 altogether, andwhen this is accomplished the reservoirs 5 begin to rise again. The reservoirs 6 are now made to move upward as before, and es the liquid rises the float 46 is held firmly up against the bottom of the fleet 52, while the gas in the chamber 8 is driven out to the atmosphere. This con' tinuee until the top of the liquid reaches the bottom of the cylinder 51', after which a certain definite predetermined volume of gas at etmosnheric,pressure is imprisoned within the cyiinder 51 and all the spaces sb eye it and in connection with it. As the reservoirs continue to rise the'liquid in the measuring-chamber finally forces all of the fresh gas over into the absorption-chamber 12, forcing the absorbing liquid out of said chamber into the dis placement-chamber 13. Here the gas is sepsreted by the action of the absorbent liquid and however, prevents the finger 40 from moving 45, because the circuit'oi against the peper said magnet is closed through the pivot 57, the lever 54, the rod 53, the two floats 52 and 45, which are in contact, the guides 47, the hinding post 50, end the battery 58. As the reservoirs 6 descend. and the gas returns from the chamber 12 to the chamber 10 and cylinder 51 the two flosts 52 end 46 will descend. together as long as the ressure of the gssin the chamber 10 end cylin er 51 is greater than or equal to the atmospheric pressure to which the liquid is subjected outside of the cylinder 51. There will come a point, however, when the pressure will be less in the cylinder 51. than outside of it, and the liquid within'the cylinder 51. will then, fall less rapidly than the liquid outside of it. When this occurs, the float 46 will leave the float 52 and the circuit through the magnet 45 will be broken, allowing the lever 43 to fall and e 11. This quantity is negligible.

eeaeva causing the tip of the finger 40 topress the i as the marking-surface 33 moves so that it.

makes a progressivelymarrower contact with the ribbon. 35 the percentage of carbonic acid Will be indicated by the width of the marking-surface; as shown by the ink-line produced on the ribbon 35 when this latter is pressed against the surface 33 by the fin er -10. This contact will continue until the 1 nger 40 is reset by the action of the advancing flanges 34; but the width of the line shown on the record will be thatwidth which is presented by the marking-surface at the first moment of contact, because the markingsurface progresses from wider to narrower. The movement of the record-ribbon must be very slow as compared. with the movement of the cylinder, sothat the resulting marks across the record are. quite narrow. The total contihuous record produced on the ribbon Will have somewhat the appearance shown in Fig. 4 and will consist'of a succession of parallel lines across the'ribbon the length of which will correspond. to the percentage of carbonic acid in the gas analyzed at the moment each line is impressed.

This invention is not limited to the use of paper-ribbon for receiving the record, as other record-receiving devices may be emlo ed and it is also not essential to this in.

vention that the markingsurface should be carried on the periphery of a cylinder.

The measuring e chamber provided, as shown, with the interior cylinder 5]. consists of an exterior and an interior division, and it is not essential to this invention that these divisions should be given the shape shown or that the interior chamber should be located as shown in the drawings. 4

While I prefer the use-oi oneor more verticallyanovable reservoirs for changing the level of the liquid in the. measuring-chambcr, any level-changing means will be within the invention. I my claims the expression recording device or recording means does not necessarily mean a device for produeing a permanent record; but any means whereby the percentage of gas is made known will be within the invention, and the electrical device for making known the per cents-go of need not necessarily include electromagnetic means, although these are preferred.

This invention applies to gas-analyzing apparatus for any purpose and is not to be limited to the use oi said apparatus in connection with furnaces.

Wh t I claim isl. A gas-analyzing apparatuscomprising a measuring-chamber, a body of liquid therein, means for varying the level of said liquid in said chamber, an electrically-operated recording device, an electric circuit for said device and meansoperated by movement of said 1i uid in said measuring-chamber for control ing said circui.t,'substantially as described.

' 2. Ages-analyzing apparatus comprising a measuring-chamber having an exterior division andan interior division, a body of liquidin said chamber, means for varying the level of saidli uid in said chamber, an electrically operate recording device, an

electric circuit for said device and means operated by dilierences of pressure in the two divisions of said measuring chamber, forcontrolling said circuit, substantially as de scribed.

3. A gas-analyzing apparatus comprising a measuring-ch amber having an exterior and an interior division, an absorption-chamber in communication with said interior division, a body of liquid in said measuring-chamber, means for varying the level of the liquid in said chamber, an electrically-operated recording device, an electric circuit for said device and means operated by differences of pressures in said two divisions of the mess tiring-chamber for controlling said circuit, substantially as described.

4. A gas-analyzing apparatus comprising a measuring chamher having an exterior and an interior division, a body of ii uid in said chamber, means for varying the evel of said liquid, an electri(rally-operated recording device, an electric circuit for said device and two floats in said circuit moving respectively in said two divisions of said measuring-cham her, substantially as described.

5. A gas-analyzing apparatus comprising a meastiring-chamber having an exterior an an interior division, a body of liquid in said chamber, a float surrounding the interior division, at second float making normal contact with said iirst iloat and adapted to enter said interior division, an. electrical recording device and a circuit therefor including the portions of. said two hosts which make'normal contact witheach other, substantially described.

6. Agasanalyzing apparatus comprising an absorption-chamber, a measuring-charm her having an exterior division communicating with the atmosphere and an interior division communicating with said absorption-chamber, a float surrounding said interior division, a second float normally in contact with said first float and capable of entering said interior division and a body of "tions between said carmcylind 'cani-cylimle I a pivoted toothed sion normally making contact with said outer float and insulated balancing means for said inner float, substantially as described. 8. In a gas-analyzing apparatus, a circuitcontroller comprisin an annular metallic float, a second metal ic float surrounded by said annular float, a stem depending from said second float and balanr'zing means applied to said stem, substantially as described. 9. In a gas-analyzing apparatus, a circuitcontroller comprising an inner metallic float, a second annular float surrounding the same, a stem on said inner float, a pivoted balancing-' lever having one end engaging said stem and a movable adj usting-wewht on the other end of said lever, substantiallyas described.

10. In a gas-analyzing apparatus, a meas uring-chamber having a central cylindrical -interi or division, an inner metallic float with.

in said interior division, an annular metallic float normally making contact with said inne float and surri'nuiding said interiordivsion', insulated cmxducting-mrides For s id annular float, an insulating; liquid for sup-- porting said floats and an electric circuit through id guides and lie is, suln lnntially as de lyzcing anparatus, r-omprisnip; niml'ier, an absorption-chnin- I -supply pipe, valve controlling communica .ien between said pipe and chainbers, a rotatingcam-cylinder and eonnec- -r and valve for operating the latter, substantially de scribed.

122. ll. gas-anal 'zing apparatus comprising a ineas'uringmbamber, an zll)S()IPtlOTl-Glliilllbar. a body of liquid in the former chamber, us for changing the level of said liquid, a g..s-suppl.y pipe, a valve controlling cont moi-sermon between said pipe and chamlnirs, a rotating cylinder bearing cams, operating C(FIlIlGClJlOIlS between said cylinder and "aid valve and operating con-- nections between said cylinder and said liquni-moving means, substantial. y as dc scribed:

i A gas-analyzing); appara tns comprising a verticallyanovable reservoir, a rotating sector larving an arm ei'lgegmg with the cam on said eylinder and gearing:connecting: said sector with said reservoir for causing: vertical movement 0i. tbe latter, substantiall (lCSClllTrQll.

14-. A gas-aimlyzing apparatus comprising a rceoxvi-cylinder and a cam-cylii'nler adapted to rotate together, a device for displacing gas, means for connecting said cam-cylinder with said device for operating the latter, a valve for determining: the direction of movement of said gas and means connecting said armcylinder ith said valve for opera ting the lattor, substantially as described.

15. A gasanalyzing apparatus comprising said seaewi a record-cylinder having a tapering markingsurlace, in combination with a record-receiving device and means for bringing said device into temporary contact with said In arkingsurface, substantially as described.

16. A gasamaly'zing apparatus comprising a movable tapering nmrlnng-surface, a record-receiving device and means for brmgmg said. surface and said device into temporary able marking-finger, a record-ribbon between said finger and said surface and an electro magnet controlling sald linger, substantially as described.

\ fl 9. A g'nsranalyzmg apparatus comprising a rotary cylinder carrying a tapering markingsurface on its peripbe and having a flange bigrlier than said surface and cut away opposite said surface, a llllll'lililg-illlgl e. tending cross said marking-surface and flange and recm'd-ribbon between said finger and said marlrbig-surface, substantially as described.

20. A gas-analyzing apparatus comprising a measuring-chamber, a body of liquid within the same, an electric circuit, means operated by movement of said liquid for controlling said circuit, an electromagnet in said circuit, a movabletapering marking-surface, a record-recGiving, device and means controlled by said magnetfor causing contact between said record-receiving device and said marl lug-surface, substantially as described.

:21. A gas-analyzing l pparatus comprising a drum carrying a marking-surface, means for rotating the same, gas-measuring appara- W said measuring apparatus, meclmnical connections between said lrum and said measuring means and admitting means for operating these later in ppropriate sequence, recording means tus, means for ad mi ttin 'as to adapted to cooperate with said. markingeurface on the drum and electrical means eon- )lled by said ;es-Incasuring means for e erating said recording means, substantially as described. l

2 A gasainalyzing apparatus comprising a rec rding device, electrical means for operating said dev ce, an absorbing-chamber, an

absorbing liquidthercin and a circuit-com trolling" device for ,operating said electrical means governed as to operation by the position of said liquid in the absorbing-chamber, substantially as described.

HENRY J. WESTOVER. Witnesses ll. S. Muslim's, Kirrnarn B. (Tu sevens 

